Panasonic KX-NT343RU (serv.man2) Service Manual ▷ View online
37
KX-NT343RU/KX-NT343RU-B
KX-NT343
RU
/KX-NT343
RU
-B MAIN No.1 (2/4)
2/4
(e)
(f)
(g)
(h)
(i)
(j)
(1)
(2)
M1_RXD[3]
M1_RXD[2]
M1_RXD[1]
M1_RXD[0]
M1_TXD[0]
M1_TXD[1]
M1_TXD[2]
M1_TXD[3]
DG
M1_COL
M1_TXD[3-0]
M1_TXEN
M1_RXCLK
M1_CRS
M1_RXDV
M1_TXCLK
M1_RXER
M1_RXD[3-0]
M1_MDC
R79 49.9(1%)
C51
100/6.3V
C93
0.022
DG
R84
100k
L18
100uH
DG
IC10
1
CE
2
GND
3
NC
4
VDD
5
VOUT
DG
DG
DG
DG
PHY3.3V
PHY_nIRQ_1
D3.3V
D7
IC8
1
NC1
2
SW
3
BST
4
ISEN
5
SGND
6
RTN
7
NC7
8
NC8
9
FB
10
SS
11
RON/SD
12
VCC
13
VIN
14
NC14
PHY_nRST_1
DG
D4
100V/3A
DC_ALARM
DG
DG
C88
0.022/25V
DG
DG
D3.3V
R80 49.9(1%)
R81 49.9(1%)
R82 49.9(1%)
DG
C53
100/6.3V
C66
K0.01
C91 K0.1
C92
K0.1
C77
Z0.1
C62
Z0.1
C94
Z0.1
C84
Z0.1
C85 K0.01
D5
4.7V
DG
DG
R70
6.49k(1%)
DG
DG
C70
Z10
C72 K0.01
C76
K0.01
C68
Z10
C80
Z22
PHY3.3V
D4.0V
C61
K0.01
IC13
1
VOUT
2
VIN
3
NC
4
VSS
D3.3V
nDETPDN
R104
33k
C52
Z10
IC6
1
GND
2
VDDPLL_18
3
VDDA_3.3
4
RX-
5
RX+
6
TX-
7
TX+
8
XO
9 XI
10 REXT
11 MDIO
12 MDC
13 RXD3
14 RXD2
15 RXD1
16 RXD0
17
VDDIO_3.3
18
RXDV
19
RXC
20
RXER
21
INT#
22
TXC
23
TXEN
24
TXD0
25
TXD1
26
TXD2
27
TXD3
28
COL
29
CRS
30
LED0
31
LED1
32
RST#
PHY3.3VA
C83
NC
C86
K0.01
DG
DG
R61
180
R60
180
R68
180
R64
180
R59
180
R66
180
RA25
180
C74
K0.01
L19
A3.3V
AG
C50
220/6.3V
AG
C113 Z0.1
IC31
1
VIN
2
VSS
3
CE
4
NC
5
VOUT
AG_2
C114
Z0.1
A3.3V
L21
NC
DG
R83
2.7k
R72
4.7k
R74
1.5k
R73
27k
R71
0
D
F
E
H
G
45
6
23
1
7
(10)
(5)
(6)
(11),(12)
(6)
(8),(9)
(10)
(7)
38
KX-NT343RU/KX-NT343RU-B
KX-NT343
RU
/KX-NT343
RU
-B MAIN No.1 (3/4)
3/4
(a)
(b)
(c)
(d)
DG
JK1
1
TX+
2
TX-
3
RX+
4
4
5
5
6
RX-
7
7
8
8
R95
75
R94
75
R90
DG
R89
R92
R91
DG
R99
75
R100
75
C102
Z0.1
C96
Z0.1
C97
100p
C98 100p
DG
T1
1
TD+
2
TCT
3
TD-
4
NC4
5
NC5
6
RD+
7
RCT
8
RD-
9
RX-
10
RXCT
11
RX+
12
NC12
13
NC13
14
TX-
15
TXCT
16
TX+
C105
1000p/100V
PHY3.3VA
L4
0
AG_2
AG
L5
EtherJACK
(PC)
D
C
B
A
8
11
10
9
(17),(18)
(14),(15)
39
KX-NT343RU/KX-NT343RU-B
KX-NT343
RU
/KX-NT343
RU
-B MAIN No.1 (4/4)
4/4
(e)
(f)
(g)
(h)
(i)
(j)
PCB
C109
0.1/250V
C111
C107
L12
L13
L14
L15
R101 75
R97 75
R98
75
R93
68.1(1%)
D2
1
2
3
4
D1
1
2
3
4
C55
10/100V
DG
DG
AG_2
AG_2
DG
D6
200V/1A
D3
100V/3A
T2
1
TD+
2
TCT
3
TD-
4
NC4
5
NC5
6
RD+
7
RCT
8
RD-
9
RX-
10
RXCT
11
RX+
12
NC12
13
NC13
14
TX-
15
TXCT
16
TX+
C108
0.047/100V
JK2
1
TX+
2
TX-
3
RX+
4
4
5
5
6
RX-
7
7
8
8
L11
L10
L9
L8
PoE+
PoE-
R96
75
C104
0.1/250V
C106
1000p/100V
C110
1000p/100V
C95
1000p/100V
R85
DG
R87
DG
R88
R86
DG
C100 100p
C101 100p
C99 Z0.1
C103 Z0.1
DG
DG
CN1
1
HD_AG
2
HD_SP
3
HD_DET
4
HD_MIC
5
HS_MIC+
6
HS_AG
7
HS_SP
8
HS_MIC-
9
GND
10
GND
11
Back UP
12
Back UP
13
DCIN-
14
DCIN-
15
DCIN+
16
DCIN+
DCIN+
DCIN-
HD_MIC
HD_AG
HD_DET
HD_SP
HS_MIC-
HS_AG
HS_MIC+
HS_SP
PHY3.3VA
C54
2.2/100V
R103
0
C112
Z0.1/50V
IC9
1
NC1
2
RCLASS
3
NC3
4
VIN
5
VOUT
6
PWRGD
7
NC7
8
GND
IP1 250mA
IP2
3000mA
EtherJACK
(LAN)
Jack PCB
D
F
E
H
G
8
11
10
9
(11),(12)
(8),(9)
40
KX-NT343RU/KX-NT343RU-B
10.3. Main No.2
D
C
B
A
45
6
23
1
E
7
KX-NT343
RU
/KX-NT343
RU
-B MAIN No.2 (1/4)
1/4
(a)
(b)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
D[6]
A[15]
A[9]
D[4]
A[16]
A[10]
A[12]
A[1]
D[7]
D[3]
A[11]
D[5]
A[0]
A[15]
A[14]
A[13]
A[12]
A[11]
A[10]
A[9]
A[8]
A[7]
A[6]
A[5]
DQM[2]
DQM[1]
A[1]
A[2]
A[3]
A[4]
D[15]
D[7]
D[14]
D[6]
D[5]
D[13]
D[12]
D[4]
D[11]
D[3]
D[10]
D[2]
D[0]
D[15]
D[14]
D[13]
D[12]
D[11]
D[9]
D[10]
D[8]
D[0]
D[1]
D[2]
D[9]
D[1]
D[8]
A[3]
A[7]
A[6]
A[18]
A[4]
A[5]
A[8]
A[13]
A[14]
A[17]
DQM[0]
DQM[0]
A[19]
A[21]
A[20]
A[22]
A[2]
A[16]
DQM[1]
A[17]
A[18]
A[19]
A[20]
A[21]
A[22]
D3.3V
DG
D3.3V_2
D3.3V_2
DG
DG
D3.3V
C9
18p
C10
18p
R14
4.7k
D3.3V
D3.3V
DG
DG
DG
DG
D3.3V
DG
D3.3V_2
D3.3V_2
D3.3V_2
D3.3V_2
DG
DG
DG
D3.3V
D3.3V
DG
D3.3V
DG
DG
DG
DG
DG
IC2
9
A19
16
A18
17
A17
18
A7
19
A6
20
A5
21
A4
22
A3
23
A2
24
A1
25
A0
26
CE
27
VSS27
28
OE
29
DQ0
30
DQ8
31
DQ1
32
DQ9
33
DQ2
34
DQ10
35
DQ3
36
DQ11
37
VCC
38
DQ4
39
DQ12
40
DQ5
41
DQ13
42
DQ6
43
DQ14
44
DQ7
45
DQ15/A-1
46
VSS46
47
BYTE
48
A16
1
A15
2
A14
3
A13
4
A12
5
A11
6
A10
7
A9
8
A8
11
WE
12
RESET
10
A20
13
NC13
14
WP#/ACC
15
RY/BY
DG
D3.3V
IC12
1
1
2
2
3
3
4
4
DG
D3.3V
DG
R16 150
D1.5V
R15
1M
X1
8.192MHz
RA23
33
RA2
33
RA1
33
RA3
33
RA6
33
RA5
33
RA4
33k
RA8
33
RA7
33
D3.3V
R10
33k
R2 33k
R7
33k
R1
33k
R6
33k
R8 0
C8
K0.01
C2
Z0.1
C6
Z0.1
R12
33k
R11
33k
R3
33k
R4 33k
R20
33
R21
NC
R18
33
R19
33k
R13
NC
C13 100p
C11
Z0.1
C15
Z0.1
C20 Z0.1
C14
K0.01
IC1
1
DGND1
2
A15
3
A14
4
A13
5
A12
6
A11
7
A10
8A
9
9A
8
10
A7
11
A6
12
A5
13
NC13
14
TEST3
15
TEST2
16
TEST1
17
NC17
18
PVDD1.8_18
19
PGND19
20
VCNT1
21
nWAIT/PB12
22
nRSTOUT
23
TEST0
24
ROMBUSW
25
A4
26
A3
27
A2
28
A1
29
A0
30
nMWRL
31
nMWRH
32
nMRD
33
nRESET
34
XTAL1
35
XTAL2
36
DVDD3.3_36
37
DGND37
38
nCS0
39
nCS1/PD4
40
DQM3
41
DQM2
42
nDRCS1
43
nDRCS0
44
nRAS
45
nCAS
46
DRCLK
47
DRWE
48
DQM1
49
DQM0
50
M1_TXEN
51
M1_TXCLK
198 DVDD1.8_198
199 DGND199
200 nCTS1/PC4
201 nDSR1/PC5
202 nRTS1/PC11
203 nDTR1/PC12
204 EXCK1/PC6
205 TXD1/PC13
206 RXD1/PC7
207 A24
208 A23
209 A22
210 A21
211 A20
212 A19
213 A18
214 A17
215 A16
216 DVDD216
DG
DG
C18
100p
C22
100p
D1.5V
DG
DG
C19
Z0.1
C23 Z10
DG
R37
33
DG
IC3
1
VCC1
2
DQ0
3
VCCQ3
4
DQ1
5
DQ2
6
VSSQ6
7
DQ3
8
DQ4
9
VCCQ9
10
DQ5
11
DQ6
12
VSSQ12
13
DQ7
14
NC14
15
VCC15
16
DQM0(bit7-0)
17
#WE
18
#CAS
19
#RAS
68
CLK
69
NC69
70
NC70
71
DQM1(bit15-8)
72
VSS72
73
NC73
74
DQ8
75
VCCQ75
76
DQ9
77
DQ10
78
VSSQ78
79
DQ11
80
DQ12
81
VCCQ81
82
DQ13
83
DQ14
84
VSSQ84
85
DQ15
86
VSS86
C4
K0.1
C3
K0.1
C71
220u/6.3V
C12
K0.22
(1)
(1)
(2)
(3)
Click on the first or last page to see other KX-NT343RU (serv.man2) service manuals if exist.